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Finding the Fourth Proportional to 255,616.64, 352,753.28 and 140,899.44

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Solution

The fourth proportional to 255,616.64, 352,753.28 and 140,899.44 is: 194,442.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,616.64 : 352,753.28 = 140,899.44 : x
  2. Step 2: Convert to fraction form
    255,616.64/352,753.28 = 140,899.44/x
  3. Step 3: Cross multiply
    255,616.64x = 352,753.28 × 140,899.44
  4. Step 4: Simplify right side
    255,616.64x = 49,702,739,610.16
  5. Step 5: Solve for x
    x = 49,702,739,610.16/255,616.64
  6. Step 6: Final answer
    x = 194,442.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.